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Evaluation of Association Mapping Test Crosses Under Optimal Condition (caamlh 11)

A. N. M. S. Karim
Plant Breeding Division, Bangladesh Agricultural Research Institute, Joydebpur, Gazipur-1701.

S. Ahmed
Plant Breeding Division, Bangladesh Agricultural Research Institute, Joydebpur, Gazipur-1701.

M. Z. A. Talukdar
Plant Breeding Division, Bangladesh Agricultural Research Institute, Joydebpur, Gazipur-1701.

M. R. Ali
Plant Breeding Division, Bangladesh Agricultural Research Institute, Joydebpur, Gazipur-1701.

Abstract/ Executive Summary:

Two hundred and forty five CIMMYT developed maize hybrids including three checks were evaluated at BARI, Gazipur, during rabi 2012-13. Considering yield and all yield contributing characters, hybrids E166 (9.64 t/ha) and E106 (9.46 t/ha) gave the highest yield compare to the check varieties namely E243 (7.69 t/ha), E244 (6.12 t/ha) and E245 (6.43 t/ha). Hybrid E13 (3.39 t/ha) gave the lowest yield.

Keywords: Evaluation, Mapping test, Hybrid, Maize

Location: BARI, Gazipur.

Start Date: 00-00-2012

End Date: 00-00-2013

Program Area: Variety and Species

Commodity: Maize

Objectives:

To evaluate the yield potentiality of the CIMMYT hybrids.

Methodology:

The experiment was conducted at BARI, Gazipur, during rabi 2012-13 including 242 CIMMYT developed hybrids and three check varieties. The experiment was laid out in Alpha Lattice Design with 2 replications. Seeds of each entry were sown in 1 row, 3m long plots with 60 cm and 20 cm spacing tween rows and plants, respectively. Seeds were sown on 17 January 2013. One healthy seedling per hill was kept after thinning. Fertilizers were applied @ 250, 120, 120, 40 and 5 kg/ha of N, P₂O₅, K₂O, S and Zn, respectively. Standard agronomic practices including irrigation were done to raise a healthy crop plant protection measures were taken as and when necessary. Data on yield and other important characters were recorded at appropriate stage. All the recorded data were processed and were analyzed statistically using Crop STAT Program. This study showed only 25 entries, where some top yielder and low yielder hybrids included.

Source of Information: Annual Research Report 2012-13, Plant Breeding Division, Bangladesh Agricultural Research Institute, Joydebpur, Gazipur, September-2013, pp: 175-176.

Article Link (Online Journal):

Funding Source:

1.

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Among the hybrids, E166 and E106 showed better performance.

Knowledge Management: Report/Proceedings